Add facility so On-Star can be used to update Audio system software to keep up with Apple iPod and iPhone updates.

Deepen Cup holders as my coffee cup gets in the way of my stick shift

Shorten travel on Emergency Brake - Need to pull it too high to engage

^ This would be a great idea!

Also: height adjustment for passenger seat (manual for LS, power for all else)
Remote start for manuals (have it only work while the car is in neutral)
Garage door opener (on 2LT and 2SS) - Make it just a simple push, instead of having to hold it for a second or so (maybe add some little LEDs to help visibility of the buttons as well).
For the RS package: Make the halo's replace the DRLs and make the DRLs back into actual fog lights (but have the fog light color match that of the HID lights). Also, a brighter halo ring would be good.

Take a page from Scion and offer lots of performance parts and visual accessories (pedals, shifter knobs, etc) from GM at the dealerships. Some people won't care for this and will get their own stuff, but with a younger crowd possibly looking at these Camaros, this strategy could help generate added revenue, and would give the customer a greater choice of customization when they get their Camaros.